Fisberj' ludnstriea of Mm Uiiitefl States, Sect. III. 



OCEAN TEMPERATURE CHART No. 23 



By RICHAKD RATHBUK. 



Station: Matinicus Rock Light House, Maine. 



Representing, by means of curves, the temperature of the alr.from 1881 to 1883, Inclusive, and of -the water at the surface feom 



1881 to 1885, inclusive, reduced to means of ten days. 



EXPLANATION OF THE CURVES: i88r, 1882, ....1883, 1884, "—1885. 



(Issued in/i886) 



